I need to rank salespeople by their depletion cases for each product brand. It should look something like this:

Brand1 Brand2 Brand3 Brand4
salesperson1 1 3 2 1
salesperson2 2 1 3 3
salesperson3 3 2 1 2

Can somebody show me how to program this in MDX.
It seems that I can only get a ranking of one group and it does not cross join or rank each salesperson for each brand.

Please help.